When I turn off the engine, park the fp exposrue to outdoor at high temp(higer than 30°C) for a while. Then I turn on the engine, the control panel will get fault. AC DOES NOT work. And all buttons on the control panel will get fault as well.

The dashboard shows the fault info is not only the AC fault but also shows ebd, ldw, camera falut.

When I drive for a while (20-30mins) the AC and other fuctions as well as control panel are back to normal.

So I guess while the car is running on the road, so the car is getting cooler, the lower temp makes the system back to normal.

Even I delivered my car to the Servicshop for sevel times, the engineer could NOT find the cause of fault. So I have to ask some of you guys who ever met the same fault or who know the cause of fault?pls help me! HElP! Appreciate!

It's not likely to be an issue in Great Britain... If we get 30C it's for One day and make 6 hours in that day... you might get better feedback on US forum where they see similar weather in some regions.

AWD Portfolio, Italian Racing Red , a car with more "bounce" than most inflatable castles!

30 degrees C is nothing, in hot climates, Australia for instance will have in temperatures in the high 40s. Electronics don't like very high temps but 30C should not be a problem. Your problem is likely one faulty component or even a wiring or software issue.
It should be possible to simulate the problem, finding the component is another matter, that could be very difficult indeed.